package com.lidsu.gulimall.auth.controller;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.TypeReference;
import com.lidsu.common.utils.HttpUtils;
import com.lidsu.common.utils.R;
import com.lidsu.gulimall.auth.feign.MemberFeignService;
import com.lidsu.common.vo.MemberRespVo;
import com.lidsu.gulimall.auth.vo.SocialUser;
import lombok.extern.slf4j.Slf4j;
import org.apache.http.HttpResponse;
import org.apache.http.util.EntityUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;

import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.util.HashMap;
import java.util.Map;

/**
 * 处理社交登录
 */
@Slf4j
@Controller
public class OAuth2Controller {

    @Autowired
    MemberFeignService memberFeignService;

    @GetMapping("/oauth2.0/weibo/success")
    public String weibo(@RequestParam("code")String code, HttpSession session, HttpServletResponse servletResponse) throws Exception {
        Map<String,String> map = new HashMap<>();
        map.put("client_id", "1578957502");
        map.put("client_secret", "58e882034cb8e9368471e302fb0759b8");
        map.put("grant_type", "authorization_code");
        map.put("redirect_uri", "http://auth.lidsu.icu/oauth2.0/weibo/success");
        map.put("code", code);
        //1.根据code换取accessToken
        HttpResponse response = HttpUtils.doPost("https://api.weibo.com", "/oauth2/access_token", "post", new HashMap<>(),map,new HashMap<>());
        //2.处理
        if(response.getStatusLine().getStatusCode()==200){
            //获取到了accessToken
            String json = EntityUtils.toString(response.getEntity());
            SocialUser socialUser = JSON.parseObject(json, SocialUser.class);
            //知道了当前是哪个社交用户
            //1)当前用户如果是第一个次进网站，自动注册进来(为社交用户生成一个会员账号，以后这个社交账号就指定对应的会员)
            //登录或者注册（判断）
            R oauthlogin = memberFeignService.oauthlogin(socialUser);
            if(oauthlogin.getCode()==0){
                MemberRespVo data = oauthlogin.getData("data", new TypeReference<MemberRespVo>() {
                });
                log.info("登录成功：{}",data.toString());
                //第一次使用session,命令浏览器保存卡号
                //以后浏览器访问哪个网站就会带上这个网站的cookie
                //子域之间：...
                //发卡的时候(指定域名为父域名)，即使是子域,
                session.setAttribute("loginUser", data);
                //TODO 1.默认发的令牌session=sdfasd. 作用域：当前域(解决子域session共享问题)
                //TODO 2.使用Json序列化方式来序列化对象数据到redis中
                //servletResponse.addCookie();
                //3.登录成功就跳转到首页
                return "redirect:http://lidsu.icu/";
            }else {
                return "redirect:http://auth.lidsu.icu/login.html";
            }
        }else{
            return "redirect:http://auth.lidsu.icu/login.html";
        }
    }
}
